Question #760bf

1 Answer

Answer:

Please state the reaction and ask again, I answered in general terms, hope it hepls

Explanation:

The indicator to be used depends on the way the ph changes during the titration
Type 1
Strong acid - Strong base
almost any indicator can be used
Type 2
Strong acid - Weak base
The indicator needs to change colour in the acidic region i.e below pH of 7
Type 3
Weak acid - Strong base
The indicator needs to change colour in the alkaline region i.e above pH of 7
Type 4
Weak acid - Weak base
The indicator needs to change colour at and around pH of 7. It is suggested to use a pH strip that changes into various colours as the pH changes for best results